H
Hugo Caballero Figueroa
Guest
In an RC differentiator:
----------------C------------------|-----------
|
Vin R V
|
___________________________|________
we have:
C * d/dt (Vin-V) = V / R
--> RC * d/dt (Vin-V) = V
if:
dV/dt << dVin/dt
--> RC * dVin/dt = V
I have read that we have to choose RC small in order to assure that
dV/dt << dVin/dt
Why is dV/dt much smaller if RC is small enough?
Thank you in advance.
----------------C------------------|-----------
|
Vin R V
|
___________________________|________
we have:
C * d/dt (Vin-V) = V / R
--> RC * d/dt (Vin-V) = V
if:
dV/dt << dVin/dt
--> RC * dVin/dt = V
I have read that we have to choose RC small in order to assure that
dV/dt << dVin/dt
Why is dV/dt much smaller if RC is small enough?
Thank you in advance.